Home / 1,913.63-2,641.91-1,447.07

Finding the Fourth Proportional to 1,913.63, 2,641.91 and 1,447.07

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Solution

The fourth proportional to 1,913.63, 2,641.91 and 1,447.07 is: 1,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.63 : 2,641.91 = 1,447.07 : x
  2. Step 2: Convert to fraction form
    1,913.63/2,641.91 = 1,447.07/x
  3. Step 3: Cross multiply
    1,913.63x = 2,641.91 × 1,447.07
  4. Step 4: Simplify right side
    1,913.63x = 3,823,008.26
  5. Step 5: Solve for x
    x = 3,823,008.26/1,913.63
  6. Step 6: Final answer
    x = 1,997.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.